Datasheet
Vin
1
5Vout
18
21
SW_5V
V5FILT
PG_5V
VREF2
20
19
1
Not used
1
GND
3.3Vout
3.3Vout
GND
GND
5Vout
TP305
Vin
GND
TP304
J304
TP303
J301
C312
1000pF
TP307
+
33uF
C305
10.0k
R302
TP313 TP301
R312
5.11
R310
3.48k
TP314
R311
3.48k
EN3
PG_3.3V
21
20
18
C313
1000pF
4.7uH
L302
22uF
C307
3.3VEnable
TP306
J302
GND
TP309
C310
10uF
+
C311
330uF
C302
+
R308
1
10uF
C317
TP312
R307
2.05
C309
0.1uF
TP302
1
R309
C315
10uF
C303
TP310
GND
5VEnable
EN_3.3VBIAS
3.3V_BIASEnable
SW_3.3V
J305
C304
22uF
10.0k
R301
5V_BIAS
0
R305
3.3V_BIAS
1000pF
C301
10.0k
R303
Optioninput capacitor for holdup
3.3V Enable:
1. Jumper on(Default): Disable3.3Vout of U301
2. No Jumper : Enable3.3Vout of U301
Note3:
J306
+
33uF
C306
19
R304
10.0k
+
L301
4.7uH
+
TP311
C308
0.1uF
C316
1uF
R306
2.05
C319
10uF
C318
1uF
5VEnable:
1. Jumper on(Default): Disable 5Vout of U301
2. NoJumper : Enable5Vout of U301
+
C314
330uF
TP308
Optioninput capacitor for hold up
3.3VBIASEnable:
1. No Jumper : Always enableinternal 3.3VLDOof U301 for CPUand GPUcircuit
1031
TONSEL
13
VBST2
28
VBST1
16
DRVL2
25
DRVL1
7
C O M P 2
4
V R E F 2
1
V O 1
1 8
C S 2
2 1
V R E G 5
2 4
P G N D 1
8
V O 2
9
EN5
5
G N D
2
C O M P 1
6
V F B 2
3
V F B 1
33
PwPd
32
SKIPSEL
11
PGOOD2
14
DRVH2
12
EN2
15
LL2
30
PGOOD1
27
DRVH1
29
EN1
26
LL1
1 7
P G N D 2
2 0
V 5 F IL T
2 3
C S 1
1 9
V R E G 3
2 2
V IN
TPS51120RHB
U301
www.ti.com
Schematics
Figure 4. TPS59610EVM-634 Schematic, Sheet 3 of 5
9
SLUU465–November 2010 An 8-V to 14-V Vin 2010 Atom™ E6xx— Tunnel Creek Power System
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